According to evolutionary psychologist Satoshi Kanazawa, people who drink more are more intelligent than those who drink less or do not drink at all. People’s intelligence has a correlation with their drinking habit.

Earlier, there was no alcohol around and people used to drink fermented fruit juice or other food. Alcohol was produced much later.

"The hypothesis would, therefore, predict that more intelligent individuals may be more likely to prefer drinking modern alcoholic beverages (beer, wine, and distilled spirits) than less intelligent individuals, because the substance and the method of consumption are both evolutionary novel," Kanazawa wrote on Psychology Today.

"Consistent with the prediction of the hypothesis, more intelligent children, both in the United Kingdom and the United States, grow up to consume alcohol more frequently and in greater quantities than less intelligent children."

But it's not because those from a higher socio-economic background can afford to drink more or socialise in circles that drink more, he added.

"It appears to be their intelligence itself, rather than correlates of intelligence, that inclines them to drink more," he added.

Studies have found that drinking alcohol can actually boost your brain.

Alzheimer's Lead author Edward Neafsey said: "We don't recommend that non-drinkers start drinking, but moderate drinking - if it is truly moderate - can be beneficial."

Champagne has also been said to do the same thing to the brain. It contains a certain chemical that helps the brain in stopping the memory from shrinking. The experiments have been performed on the rats, where they were given bubbly beverage every day for six weeks.

The rats that were not fed with beverage had a success rate of 50% when left in a maze and the ones that were fed champagne had a success rate of 70%.

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